HomebrewでPython3をインストールするとpipが使えない macOSHomebrewPython`pip3`Python3pip`command not found` HomebrewPython3 pip3 pip pip3python3pip? ln -s? python3.6.5 macOS 10.13.4

`sudo chown -R $(whoami) $(brew --prefix)`
`brew install python``/usr/local``pip3`

/usr/localownerroot